HIN237CB-T RS232 5/3 Transceiver Equivalent & Substitute Parts

Part Overview

The HIN237CB-T is a full-duplex RS232 transceiver manufactured by Renesas Electronics Corporation, configured with 5 drivers and 3 receivers in a 24-SOIC surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations. The part operates within a 4.5V to 5.5V supply range with a 120 kbps data rate and 500 mV receiver hysteresis, suitable for legacy serial communication applications requiring full RS232 protocol compliance.

Key Parameters

Parameter	Value
Manufacturer Part Number	HIN237CB-T
Manufacturer	Renesas Electronics Corporation
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	5/3
Duplex	Full
Receiver Hysteresis	500 mV
Data Rate	120 kbps
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Mounting Type	Surface Mount
Package / Case	24-SOIC (0.295", 7.50mm Width)
Product Status	Obsolete
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the HIN237CB-T is determined by strict equivalence across the following critical parameters:

Protocol: RS232 full-duplex transceiver
Driver/Receiver Configuration: 5 drivers and 3 receivers
Package: 24-SOIC surface mount form factor
Data Rate: 120 kbps minimum
Receiver Hysteresis: 500 mV or higher
Supply Voltage Range: Compatibility with 4.5V to 5.5V operation
Mounting Type: Surface mount technology

Substitute parts are categorized into three groups:

Direct Substitutes (Drop-in Replacements): Parts with identical electrical specifications and package, differing only in manufacturer or product status upgrade.

Upgrade Substitutes: Parts with enhanced operating temperature ranges (-40°C to 85°C versus 0°C to 70°C) and active product status, providing extended reliability and availability.

Similar Substitutes: Parts with minor parameter variations (receiver hysteresis, supply voltage tolerance) that remain functionally compatible within the 5/3 RS232 transceiver category.

Parameter Comparison

Part Number	Manufacturer	Drivers/Receivers	Receiver Hysteresis (mV)	Supply Voltage	Operating Temperature	Package	Product Status	RoHS Status	Packaging Type
HIN237CB-T	Renesas Electronics	5/3	500	4.5V ~ 5.5V	0°C ~ 70°C	24-SOIC	Obsolete	RoHS non-compliant	Tape & Reel
MAX237CWG+	Analog Devices Inc./Maxim Integrated	5/3	500	4.5V ~ 5.5V	0°C ~ 70°C	24-SOIC	Active	ROHS3 Compliant	Tube
MAX237EWG+	Analog Devices Inc./Maxim Integrated	5/3	500	4.5V ~ 5.5V	-40°C ~ 85°C	24-SOIC	Active	ROHS3 Compliant	Tube
MAX237EWG+T	Analog Devices Inc./Maxim Integrated	5/3	500	4.5V ~ 5.5V	-40°C ~ 85°C	24-SOIC	Active	ROHS3 Compliant	Tape & Reel
ADM237LARZ	Analog Devices Inc.	5/3	650	4.75V ~ 5.25V	-40°C ~ 85°C	24-SOIC	Active	ROHS3 Compliant	Tube
ADM237LARZ-REEL	Analog Devices Inc.	5/3	650	4.75V ~ 5.25V	-40°C ~ 85°C	24-SOIC	Active	ROHS3 Compliant	Tape & Reel
ADM237LJRZ	Analog Devices Inc.	5/3	650	4.75V ~ 5.25V	0°C ~ 70°C	24-SOIC	Active	ROHS3 Compliant	Tube
ADM237LJRZ-REEL	Analog Devices Inc.	5/3	650	4.75V ~ 5.25V	0°C ~ 70°C	24-SOIC	Active	ROHS3 Compliant	Tape & Reel
MAX207CDW	Texas Instruments	5/3	500	4.75V ~ 5.25V	0°C ~ 70°C	24-SOIC	Obsolete	ROHS3 Compliant	Tube
MAX207CDWR	Texas Instruments	5/3	500	4.75V ~ 5.25V	0°C ~ 70°C	24-SOIC	Obsolete	ROHS3 Compliant	Tape & Reel
MAX207CWG+	Analog Devices Inc./Maxim Integrated	5/3	500	4.75V ~ 5.25V	0°C ~ 70°C	24-SOIC	Active	ROHS3 Compliant	Tube

Engineering Selection Recommendations

For Direct Replacement with Active Product Status: MAX237CWG+ provides identical electrical specifications to the HIN237CB-T with active product status and ROHS3 compliance. This part maintains the same operating temperature range (0°C to 70°C) and supply voltage window (4.5V to 5.5V), ensuring seamless integration into existing designs. Packaging is available in tube format.

For Extended Temperature Range Applications: MAX237EWG+ and MAX237EWG+T offer the same core RS232 5/3 transceiver functionality with an extended operating temperature range of -40°C to 85°C. Both parts maintain ROHS3 compliance and active product status. MAX237EWG+T is supplied in tape and reel packaging, while MAX237EWG+ is available in tube format.

For Tighter Supply Voltage Tolerance: ADM237LARZ, ADM237LARZ-REEL, ADM237LJRZ, and ADM237LJRZ-REEL are Analog Devices alternatives with a narrower supply voltage range (4.75V to 5.25V) and higher receiver hysteresis (650 mV). These parts are suitable for applications requiring stricter voltage regulation. ADM237LARZ and ADM237LARZ-REEL support extended temperature operation (-40°C to 85°C), while ADM237LJRZ and ADM237LJRZ-REEL maintain the standard 0°C to 70°C range.

For Obsolete Part Replacement with Active Alternatives: When transitioning from the obsolete HIN237CB-T, prioritize active product status parts from Analog Devices or Texas Instruments. All recommended substitutes carry ROHS3 compliance, supporting modern supply chain and environmental requirements.

Frequently Asked Questions (FAQ)

Q: Can MAX237CWG+ directly replace HIN237CB-T without circuit modifications? A: Yes. MAX237CWG+ is a direct electrical equivalent with identical 5/3 driver/receiver configuration, 500 mV receiver hysteresis, 4.5V to 5.5V supply range, and 24-SOIC package. The only difference is active product status and ROHS3 compliance. No circuit modifications are required.

Q: What is the difference between MAX237EWG+ and MAX237EWG+T? A: Both parts are electrically identical with extended temperature range (-40°C to 85°C). The difference is packaging: MAX237EWG+ is supplied in tube format, while MAX237EWG+T is supplied in tape and reel format. Select based on assembly line requirements.

Q: Why do ADM237 parts have 650 mV receiver hysteresis instead of 500 mV? A: ADM237 series transceivers feature higher receiver hysteresis (650 mV) compared to the HIN237CB-T (500 mV). This provides improved noise immunity in electrically noisy environments. The higher hysteresis remains compatible with RS232 protocol specifications and does not affect data rate or duplex operation.

Q: Are ADM237LARZ and ADM237LJRZ interchangeable? A: Both parts share identical electrical specifications (5/3 configuration, 650 mV hysteresis, 4.75V to 5.25V supply) and 24-SOIC package. The difference is operating temperature range: ADM237LARZ operates from -40°C to 85°C, while ADM237LJRZ operates from 0°C to 70°C. Select based on application temperature requirements.

Q: What is the significance of the "-REEL" suffix in part numbers? A: The "-REEL" suffix indicates tape and reel packaging format, suitable for automated assembly processes. Parts without this suffix are supplied in tube packaging. Both formats contain identical components; selection depends on manufacturing process requirements.

Q: Can I use MAX207CDW or MAX207CDWR as substitutes for HIN237CB-T? A: MAX207CDW and MAX207CDWR are functionally compatible 5/3 RS232 transceivers in 24-SOIC packages. However, both are classified as obsolete products. While they maintain the same driver/receiver configuration and data rate, they are not recommended for new designs. Prefer active alternatives such as MAX237CWG+ or MAX237EWG+.

Q: What does ROHS3 compliance mean for this product category? A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, and other hazardous materials. The original HIN237CB-T is RoHS non-compliant. All recommended substitutes carry ROHS3 compliance, supporting modern environmental and supply chain standards.

Q: Is the 120 kbps data rate sufficient for modern serial communication? A: Yes. The 120 kbps data rate is standard for RS232 transceivers and supports typical serial communication protocols including standard baud rates up to 115200 bps. This specification is consistent across all substitute parts listed.

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